Valve



Feb. 12,1929. 1,702,021

H. F. RODLER VALVE Filed May 14, 1926 Z0 24 6 ll/l/l 25 1 6 z 2 p Z,

H F RODLEP INVENTOR A TTOR/VE Y EILMER 1?. BODLEB, 015

PATENT OFFICE.

DAVENPORT, IOWA, ASSIGNOR TO CALVIN" J. MUMMERT, O

, WEST NEW YORK, NEW JERSEY.

. VALVE.

A lication filed m 14,

While this invention is concerned broadly with improvements in the construction and operation of valves, it is more especially con cerned with improvements in means for controlling the flow of gas for producing the igniting flame in oil burner mechanism and among the objects thereof are to produce a self-cleaning valve; to producea perfect seating valve; to produce a valve which seats with a rotary motion whereby the valve seatand valve closure member are kept clean and a perfect closure is always assured; to provide improved mechanism for imparting rotary and reciprocatory motion to a valvefclosure member; to provide a device of the class dcscribed which will invariably function to produce the result desired; to produce a device of the character indicated in which re sistance to movement of the parts will be reduced to a minimum; and such further objects, advantages, and capabilities as will hereafter appear and as are inherent in the construction disclosed herein.

My invention further resides in the novel features of construction andoperation herein illustrated and described and, while I have shown in the drawing what is now considered the preferred embodiment of my invention, I desire the same to be understood as illustrative onlyand not as limiting said invention.

Inthe drawing annexed hereto and forming a parthereof, Fig. 1 shows a longitudinal section through the body of my new construction, parts thereof being shown in elevation; Fig. 2 is a transverse section substantially along the plane indicated by broken lines 2-2, Fig, 1 Fig. 3 is an elevation of the valve closure means and cam, as viewed: from the right side as shown in Fig. l; and Figs. 4 and 5 are views similar to Fig. 3 showing the valve controlling cam in other positions.

Referring more in detail to the annexed drawing, numeral 1 designates a hollow body havinginlet and outlet ports 2 and 3, said ports being connected by a channel 4; having an opening 5 therein which may be closed entirely or partially by the valve closure member 6. This valve closure member is carried axially by the cam 7 and seats accurately at- 8 so as to entirely close the opening 5.

Projecting axially fromthe opposite face of the cam 7 is a body member?) carrying projections l0 whichcooperate with the driving mechanism to produce rotary motion of the cam, which in turn produces axialmovement 1926., Serial No. 109,140.

of the valve closing member 6. A shaft 11 extending from suitable driving means passes through the stud 12 whereby the valve is secured to any desired supporting member 13. In the present instance this is a part of the supporting or encasing means for the entire structure. The shaft 11 has a head 14 detachably secured to the inner end thereof, prefer= ably by means of a set screw 15. Thishead carries projections 16 which cooperate with the projections 10 to cause rotary motion of the cam 7, as outlined above. Because of the shapeand material of the projections 10 and 16 friction at the points of contact thereof is reduced to a minimum, so that there shall be the least possible resistance to the sliding or axial movement of the parts. The head 14 is preferably hollowed out for the reception of resilient means 1?, shown in the present in stance as a spring, and this resilient means presses against the projection 9 to constantly keep the cam 7 seated against the various abutments with which it cooperates, and to cause seating of the valve closure means 6, when the valve is supposed to be closed. The

head 14 is longitudinally apertured, as .shown atl8, for the reception of the shaft- 11 and the projection 19 which extends axially with relation tothe valve closure member 6, the cam 7 and the projection 9. As shown, the end of member 19 is bevelled to'cooperate with a corresponding bevel at'the end of openingl8,so that the projection 19 will be sure to enter the opening 18, whenflmovemnt of cam 7 causes retraction of valve closure member 6. This assists i'nkeeping the parts in axial alignment and thus reducing wear.

An adjustable member 20 extends throu h the body memberl and serves to open t e valve sutficiently to permit a regulated amount of gas to flowtherethrough for supplying an igniting flame. 'As the cam 7 turns in the direction indicated by the arrow in Fig. 8, the portion 26 of the cam rides on the inner end of screw 20 andthe valve is thereby maintained in a slightly opened position.

The cam rides around on the end of this screw until cam face 22 strikes projection 23, as shown in Fig. 4, when the valve is opened wvide to permit a large flow of gas through 9. In a valve operating mechanism a body member having a channel extending thereanother point in its rotation for actuating said closure member.

10. In a valve operating mechanism, a hollow body member in which a cam is mounted for rotary and axial movement, a valve member carried by said cam projections extending from said cam and adapted to cooperate with a rotary member to transmit rotary motion to the cam, a rotary member in said hollow body having projections therefrom adapted to cooperate with the projections on the cam, a spring adapted to cause separation of the rotary member and the cam, and means to cause movement of the cam toward the rotary member during a part of the cycle of rotation thereof.

In witness whereof, I hereunto subscribe my name to this specification.

HILMER F. RODLER. 

